Home / 39,646.48-54,769.08-31,678.24

Finding the Fourth Proportional to 39,646.48, 54,769.08 and 31,678.24

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Solution

The fourth proportional to 39,646.48, 54,769.08 and 31,678.24 is: 43,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,646.48 : 54,769.08 = 31,678.24 : x
  2. Step 2: Convert to fraction form
    39,646.48/54,769.08 = 31,678.24/x
  3. Step 3: Cross multiply
    39,646.48x = 54,769.08 × 31,678.24
  4. Step 4: Simplify right side
    39,646.48x = 1,734,988,060.82
  5. Step 5: Solve for x
    x = 1,734,988,060.82/39,646.48
  6. Step 6: Final answer
    x = 43,761.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.